because enbrel, etanercept suppresses your immune system, it may lower your ability to fight infections. serious, sometimes fatal events including infections tuberculosis lymphoma, other cancers, and nervous system and blood disorders have occurred. your doctor should test you for tuberculosis and discuss whether you've been to a region where certain fungal infections are common. don't start enbrel if you have an infection like the flu. tell your doctor if you're prone to infections, have cuts or sores have had hepatitis b have been treated for heart failure, or if, while on enbrel, you experience persistent fever, bruising, bleeding, or paleness. [ phil ] get back to the things that matter most. ask your rheumatologist if enbrel is right for you. [ doctor ] enbrel, the number one biologic medicine prescribed by rheumatologists.